Shredder



FIG. 1 is a right side perspective view of a shredder showing our new design;

FIG. 2 is a left side perspective view thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side elevation thereof; and,

FIG. 6 is a left side elevation thereof.

The broken lines shown in the figure drawings illustrate structural environment and form no part of the claim. 

The ornamental design for a shredder, as shown and described. 